From bbaaf72768324079e58fd62807879fc5e74d0478 Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Mon, 25 Jun 2018 15:03:25 -0700
Subject: [PATCH 1/3] Port Closure Compiler fixes to polymer-externs

---
 externs/polymer-externs.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/externs/polymer-externs.js b/externs/polymer-externs.js
index 0a86620b69..c3b7cdfaaa 100644
--- a/externs/polymer-externs.js
+++ b/externs/polymer-externs.js
@@ -109,4 +109,15 @@ Polymer.version;
  * @extends {HTMLElement}
  * @implements {Polymer_LegacyElementMixin}
  */
-var PolymerElement = Polymer.LegacyElementMixin();
+var PolymerElement = function() {};
+
+/** On create callback. */
+PolymerElement.prototype.created = function() {};
+/** On ready callback. */
+PolymerElement.prototype.ready = function() {};
+/** On registered callback. */
+PolymerElement.prototype.registered = function() {};
+/** On attached to the DOM callback. */
+PolymerElement.prototype.attached = function() {};
+/** On detached from the DOM callback. */
+PolymerElement.prototype.detached = function() {};

From bcd01b96c0ef539408aaf8a023bfcec46daaffa1 Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Mon, 25 Jun 2018 15:05:58 -0700
Subject: [PATCH 2/3] port other fixes as well

---
 externs/polymer-externs.js | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/externs/polymer-externs.js b/externs/polymer-externs.js
index c3b7cdfaaa..c47d9a7a06 100644
--- a/externs/polymer-externs.js
+++ b/externs/polymer-externs.js
@@ -15,19 +15,19 @@
 
 /**
  * @typedef {{
- * type: !Function,
- * value: *,
- * readOnly: (boolean | undefined),
- * computed: (string | undefined),
- * reflectToAttribute: (boolean | undefined),
- * notify: (boolean | undefined),
- * observer: (string | function(*,*) | undefined)
+ *   type: !Function,
+ *   value: (* | undefined),
+ *   readOnly: (boolean | undefined),
+ *   computed: (string | undefined),
+ *   reflectToAttribute: (boolean | undefined),
+ *   notify: (boolean | undefined),
+ *   observer: (string | function(this:?, ?, ?) | undefined)
  * }}
  */
 let PolymerElementPropertiesMeta;
 
 /**
- * @typedef {Object<string, !PolymerElementPropertiesMeta>}
+ * @typedef {Object<string, !Function|!PolymerElementPropertiesMeta>}
  */
 let PolymerElementProperties;
 
@@ -69,9 +69,6 @@ PropertiesMixinConstructor.properties;
  */
 function Polymer(init){}
 
-/** @type {PolymerElementProperties} */
-Polymer.ElementProperties;
-
 /**
  * @type {(function(*,string,string,Node):*)|undefined}
  */
@@ -120,4 +117,4 @@ PolymerElement.prototype.registered = function() {};
 /** On attached to the DOM callback. */
 PolymerElement.prototype.attached = function() {};
 /** On detached from the DOM callback. */
-PolymerElement.prototype.detached = function() {};
+PolymerElement.prototype.detached = function() {};
\ No newline at end of file

From 805122018b0cafcbb93ae07d4435324b54d3068d Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Mon, 25 Jun 2018 15:26:28 -0700
Subject: [PATCH 3/3] split chrome and firefox runs, maybe fewer timeouts for
 firefox

---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 475a17ebbd..39da32bd9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,8 @@ before_script:
   '\n\033[31mERROR:\033[0m Typings are stale. Please run "npm run
   update-types".' && false)
 script:
-- wct -l chrome -l firefox
+- wct -l chrome
+- wct -l firefox
 - if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then travis_wait 30 ./util/travis-sauce-test.sh; fi
 env:
   global: